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CD138 multiple myeloma

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https://www.readbyqxmd.com/read/28881672/mb4-2-mb4-3-transcripts-of-igh-mmset-fusion-gene-in-t-4-14-pos-multiple-myeloma-indicate-poor-prognosis
#1
Feng Li, Yong-Ping Zhai, Ting Lai, Qian Zhao, Hui Zhang, Yu-Mei Tang, Jian Hou
Multiple myeloma (MM) patients with t(4;14) is a heterogeneous group. Prognostic tools capable of predicting the outcome of patients are currently lacking. The MM SET domain (MMSET) protein is universally overexpressed and has been suggested to have an important tumorigenic role. This study analyzed whether the overexpression of full-length (MB4-1) or truncated forms (MB4-2 and MB4-3) of MMSET influence the prognosis of t(4;14)(pos) MM patients. A total of 53 symptomatic t(4;14)(pos) MM patients were retrospectively analyzed...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28855983/bortezomib-resistance-in-multiple-myeloma-is-associated-with-increased-serine-synthesis
#2
Esther A Zaal, Wei Wu, Gerrit Jansen, Sonja Zweegman, Jacqueline Cloos, Celia R Berkers
BACKGROUND: The proteasome inhibitor bortezomib (BTZ) is successfully applied in the treatment of multiple myeloma, but its efficacy is restricted by the wide-spread occurrence of resistance. Metabolic alterations play an important role in cancer development and aid in the cellular adaptation to pharmacologically changed environments. Metabolic changes could therefore play an essential role in the development of drug resistance. However, specific metabolic pathways that can be targeted to improve bortezomib therapy remain unidentified...
2017: Cancer & Metabolism
https://www.readbyqxmd.com/read/28770277/quantitative-pcr-an-alternative-approach-to-detect-common-copy-number-alterations-in-multiple-myeloma
#3
M C Chillón, C Jiménez, R García-Sanz, M Alcoceba, I Prieto, M García-Alvarez, A Antón, R Maldonado, M Hernández-Ruano, M González, N C Gutiérrez, M E Sarasquete
Chromosome 1q gains and 13q deletions are common cytogenetic aberrations in multiple myeloma (MM) that confer a poor prognosis. There are several techniques for the targeted study of these alterations, but interphase fluorescence in situ hybridization (FISH) is the current gold standard. The aim of the present study was to validate quantitative PCR (qPCR) as an alternative to FISH studies in CD138+-enriched plasma cells (PCs) from MM patients at diagnosis. We analyzed 1q gains and 13q deletions by qPCR in 57 and 60 MM patients, respectively...
August 2, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28680482/combination-of-t-4-14-del-17p13-del-1p32-and-1q21-gain-fish-probes-identifies-clonal-heterogeneity-and-enhances-the-detection-of-adverse-cytogenetic-profiles-in-233-newly-diagnosed-multiple-myeloma
#4
Thomas Smol, Annika Dufour, Sabine Tricot, Mathieu Wemeau, Laure Stalnikiewicz, Franck Bernardi, Christine Terré, Benoît Ducourneau, Hervé Bisiau, Agnès Daudignon
BACKGROUND: Our aim was to set the FISH combination of del(17p13), t(4;14), 1q21 gain and del(1p32), four adverse cytogenetic factors rarely evaluated together, and compare our technical thresholds with those defined in the literature. METHODS: Two hundred thirty-three patients with MM at diagnosis were studied using FISH to target 4 unfavorable cytogenetic abnormalities: 17p13 deletion, t(4;14) translocation, 1p32 deletion and 1q21 gain. Technical thresholds were determined for each probe using isolated CD138-expressing PC from patients without MM...
2017: Molecular Cytogenetics
https://www.readbyqxmd.com/read/28647392/a-novel-dual-inhibitor-of-microtubule-and-bruton-s-tyrosine-kinase-inhibits-survival-of-multiple-myeloma-and-osteoclastogenesis
#5
Manoj K Pandey, Krishne Gowda, Shen-Shu Sung, Thomas Abraham, Tulin Budak-Alpdogan, Giampolo Talamo, Sinisa Dovat, Shantu Amin
Bruton's tyrosine kinase (BTK) regulates many vital signaling pathways and plays a critical role in cell proliferation, survival, migration, and resistance. Previously, we reported that a small molecule, KS99, is an inhibitor of tubulin polymerization. In the present study, we explored whether KS99 is a dual inhibitor of BTK and tubulin polymerization. Although it is known that BTK is required for clonogenic growth and resistance, and microtubules are essential for cancer cell growth, dual targeting of these two components has not been explored previously...
June 22, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28641642/-clinical-efficacy-of-cellular-immuotherapy-combined-with-bortezomib-for-the-treatment-of-patients-with-multiple-myeloma
#6
Yi-Ming Wang, Hao Long, Dan Yang, Jiang-He Shao
OBJECTIVE: To study the clinical efficacy of cellular immunotherapy combined with bortezomib for treatment of patients with multiple myeloma. METHODS: A total of 76 patients with multiple myeloma in our hospital from October 2012 to October 2013 were selected and randomly divided into 2 groups: the patients in 1 group (38 cases) were treated with cellular immunotherapy combined with chemotherapy including bortezomib (combined therapy group), the patients in other group(38 cases) were treated with only chemotherapy including bortezomib(single chemotherapy as control group)...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28641640/-application-of-cd138-immunomagnetic-sorting-myeloma-cells-combined-with-fluorescence-in-situ-hybridization-for-detecting-cytogenetic-abnormalities-of-multiple-myeloma
#7
Lu Gao, Qing Liu, Yan Shi, Hui Dang, Qi He, Zheng Wang, Lin Feng, Ye Li, Xiao-Yan Wang, Na Li, Wen-Jie Song, Yan-Lin Wang, Shu Kong, Jin Lu, Xiao-Jun Huang, Yue-Yun Lai
OBJECTIVE: To investigate the efficiency of direct fluorescence in situ hybridization (D-FISH) versus FISH on CD138 immunomagnetic sorting myeloma cells (MACS-FISH) to detect the cytogenetic abnormalities of multiple myeloma. METHODS: Thirty-one patients with multiple myeloma (MM) were detected by D-FISH and MACS-FISH, using 5 probes, including 1q21, D13S319, RB1, IgH, P53. The IgH rearrangement positive patients were further examined by 3 IgH rearrangement subtype FISH probes including IgH/FGFR3, IgH/MAF and IgH/CCND1...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28624792/mb4-2-mb4-3-transcripts-of-igh-mmset-fusion-gene-in-t-4-14-pos-multiple-myeloma-indicate-poor-prognosis
#8
Feng Li, Yong-Ping Zhai, Ting Lai, Qian Zhao, Hui Zhang, Yu-Mei Tang, Jian Hou
Multiple myeloma (MM) patients with t(4;14) is a heterogeneous group. Prognostic tools capable of predicting the outcome of patients are currently lacking. The MM SET domain (MMSET) protein is universally overexpressed and has been suggested to have an important tumorigenic role. This study analyzed whether the overexpression of full-length (MB4-1) or truncated forms (MB4-2 and MB4-3) of MMSET influence the prognosis of t(4;14)pos MM patients. A total of 53 symptomatic t(4;14)pos MM patients were retrospectively analyzed...
May 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28620566/leukemia-cutis-associated-with-secondary-plasma-cell-leukemia
#9
Nicole C DeMartinis, Megan M Brown, Brian R Hinds, Philip R Cohen
Plasma cell leukemia is an uncommon, aggressive variant of leukemia that may occur de novo or in association with multiple myeloma. Leukemia cutis is the cutaneous manifestation of leukemia, and indicates an infiltration of the skin by malignant leukocytes or their precursors. Plasma cell leukemia cutis is a rare clinical presentation of leukemia. We present a man who developed plasma cell leukemia cutis in association with multiple myeloma. Cutaneous nodules developed on his arms and legs 50 days following an autologous stem cell transplant...
May 9, 2017: Curēus
https://www.readbyqxmd.com/read/28558048/dek-protein-level-is-a-biomarker-of-cd138positive-normal-and-malignant-plasma-cells
#10
Zihni Onur Çalışkaner, Türkan Çakar, Emrah Özçelik, Ahmet Özdilek, Annette S Kim, Öner Doğan, Amma Bosompem, Gerard Grosveld, Bülent Saka, Ayten Kandilci
Overexpression of DEK oncogene is associated with increased proliferation of carcinoma cells and it is observed in several solid tumors due to the amplification of the 6p22.3 chromosomal region where DEK locates. Although the same chromosomal amplification occurs in multiple myeloma (MM), a plasma cell neoplasm, whether the expression and the copy number of the DEK gene are affected in MM remains elusive. We show that despite the increased copy number in CD138positive MM cells (4 out of 41 MM samples), DEK mRNA expression was down-regulated compared with that in CD138negative bone marrow (BM) cells of the same patients (P<0...
2017: PloS One
https://www.readbyqxmd.com/read/28468086/-comparison-and-analysis-of-minimal-residual-disease-in-multiple-myeloma-patients-detected-by-4-color-and-8-color-fluorescence-antibody-panels
#11
Y Z Wang, J Lu, L Hao, Y Chang, L L He, X J Huang, Y R Liu
Objective: To explore and compare 4-color and 8-color fluorescence antibody panels for detecting minimal residual disease of multiple myeloma patients after therapy. Methods: One 8-color antibody panel was built including CD38 and CD138 for the identification of plasma cells (PCs) , membrane antigen CD45, CD19, CD56 and CD117, cytoplasmic Kappa (cκ) and Lambda (cλ) light chain antigen. Six tubes of 4-color panels were built, among them, membrane antigen CD45/CD19, CD56/CD117, CD19/CD56 and light chains were analyzed combined by CD38/CD138 for PCs gate in the tubes M1-3 and tube C-(κ/λ), respectively; CD19 or CD45 and cκ/cλ light chains were detected in the tube MC1-(C)D38 for CD38/SSC identified PCs gate and tube MC2-(CD138) for CD138/SSC identified PCs gate separately...
April 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28454452/flow-cytometry-based-immunophenotypic-analysis-of-primary-systemic-light-chain-amyloidosis
#12
Xiangwen Diao, Juan Li, Juan Ouyang, Junru Liu, Beihui Huang, Meilan Chen, Jingli Gu
Using flow cytometry, the present study aimed to investigate the immunophenotypic characteristics of malignant plasma cells (PCs) in the bone marrow of patients with primary systemic light chain amyloidosis (AL) compared with the characteristics of patients with multiple myeloma (MM). Flow cytometric results of 51 patients with AL and 150 patients with MM were reviewed. The proportion of total bone marrow PCs in the patients with AL was significantly lower than that in the patients with MM, 1.35% (0.3-9.5%) vs...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28374831/isolation-of-circulating-plasma-cells-in-multiple-myeloma-using-cd138-antibody-based-capture-in-a-microfluidic-device
#13
Mohammad A Qasaimeh, Yichao C Wu, Suman Bose, Anoop Menachery, Srikanth Talluri, Gabriel Gonzalez, Mariateresa Fulciniti, Jeffrey M Karp, Rao H Prabhala, Rohit Karnik
The necessity for bone marrow aspiration and the lack of highly sensitive assays to detect residual disease present challenges for effective management of multiple myeloma (MM), a plasma cell cancer. We show that a microfluidic cell capture based on CD138 antigen, which is highly expressed on plasma cells, permits quantitation of rare circulating plasma cells (CPCs) in blood and subsequent fluorescence-based assays. The microfluidic device is based on a herringbone channel design, and exhibits an estimated cell capture efficiency of ~40-70%, permitting detection of <10 CPCs/mL using 1-mL sample volumes, which is difficult using existing techniques...
April 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28303902/ms4a4a-a-novel-cell-surface-marker-for-m2-macrophages-and-plasma-cells
#14
Ratna Sanyal, Maria J Polyak, Jonathan Zuccolo, Mandip Puri, Lili Deng, Luc Roberts, Ania Zuba, Jan Storek, Joanne M Luider, Ellen M Sundberg, Adnan Mansoor, Eva Baigorri, Michael P Chu, Andrew R Belch, Linda M Pilarski, Julie P Deans
MS4A4A is a member of the membrane-spanning, four domain family, subfamily A (MS4A) that includes CD20 (MS4A1), FcRβ (MS4A2) and Htm4 (MS4A3). Like the first three members of this family, transcription of MS4A4A appears to be limited to hematopoietic cells. To evaluate expression of the MS4A4A protein in hematopoietic cell lineages and subsets we generated monoclonal antibodies against extracellular epitopes for use in flow cytometry. In human peripheral blood we found that MS4A4A is expressed at the plasma membrane in monocytes but not in granulocytes or lymphocytes...
August 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28264449/tumor-cell-derived-microvesicles-induced-not-epithelial-mesenchymal-transition-but-apoptosis-in-human-proximal-tubular-hk-2-cells-implications-for-renal-impairment-in-multiple-myeloma
#15
Aiqi Zhao, Fancong Kong, Chun-Jie Liu, Guoxin Yan, Fei Gao, Hao Guo, An-Yuan Guo, Zhichao Chen, Qiubai Li
Renal impairment (RI) is one of the hallmarks of multiple myeloma (MM) and carries a poor prognosis. Microvesicles (MVs) are membrane vesicles and play an important role in disease progression. Here, we investigated the role of MVs derived from MM cells (MM-MVs) in RI of MM. We found that MM-MVs significantly inhibited viability and induced apoptosis, but not epithelial-mesenchymal transition in human kidney-2 (HK-2), a human renal tubular epithelial cell line. The protein levels of cleaved caspase-3, 8, and 9, and E-cadherin, were increased, but vementin levels were decreased in the HK-2 cells treated with MM-MVs...
February 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28229908/multiple-myeloma-tumor-cells-are-selectively-killed-by-pharmacologically-dosed-ascorbic-acid
#16
Jiliang Xia, Hongwei Xu, Xiaoyan Zhang, Chantal Allamargot, Kristen L Coleman, Randy Nessler, Ivana Frech, Guido Tricot, Fenghuang Zhan
High-dose chemotherapies to treat multiple myeloma (MM) can be life-threatening due to toxicities to normal cells and there is a need to target only tumor cells and/or lower standard drug dosage without losing efficacy. We show that pharmacologically-dosed ascorbic acid (PAA), in the presence of iron, leads to the formation of highly reactive oxygen species (ROS) resulting in cell death. PAA selectively kills CD138(+) MM tumor cells derived from MM and smoldering MM (SMM) but not from monoclonal gammopathy undetermined significance (MGUS) patients...
April 2017: EBioMedicine
https://www.readbyqxmd.com/read/28154173/autocrine-and-paracrine-interactions-between-multiple-myeloma-cells-and-bone-marrow-stromal-cells-by-growth-arrest-specific-gene-6-cross-talk-with-interleukin-6
#17
Miki Furukawa, Hiroshi Ohkawara, Kazuei Ogawa, Kazuhiko Ikeda, Koki Ueda, Akiko Shichishima-Nakamura, Emi Ito, Jun-Ichi Imai, Yuka Yanagisawa, Reiko Honma, Shinya Watanabe, Satoshi Waguri, Takayuki Ikezoe, Yasuchika Takeishi
The pathogenesis of multiple myeloma (MM) has not yet been fully elucidated. Our microarray analysis and immunohistochemistry revealed significant up-regulation of growth arrest-specific gene 6 (Gas6), a vitamin K-dependent protein with a structural homology with protein S, in bone marrow (BM) cells of MM patients. ELISA showed that the serum levels of soluble Gas6 were significantly increased in the MM patients when compared with healthy controls. Gas6 was overexpressed in the human CD138-positive MM cell line RPMI-8226...
March 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28148777/sabotaging-of-the-oxidative-stress-response-by-an-oncogenic-noncoding-rna
#18
Nitin Mahajan, Hua-Jun Wu, Richard L Bennett, Catalina Troche, Jonathan D Licht, Jason D Weber, Leonard B Maggi, Michael H Tomasson
Overexpression of the multiple myeloma set domain (MMSET) Wolf-Hirschhorn syndrome candidate 1 gene, which contains an orphan box H/ACA class small nucleolar RNA, ACA11, in an intron, is associated with several cancer types, including multiple myeloma (MM). ACA11 and MMSET are overexpressed cotranscriptionally as a result of the t(4;14) chromosomal translocation in a subset of patients with MM. RNA sequencing of CD138(+) tumor cells from t(4;14)-positive and -negative MM patient bone marrow samples revealed an enhanced oxidative phosphorylation mRNA signature...
February 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28060076/epibulbar-plasmacytoma-masquerading-as-subconjunctival-hemorrhage-in-a-patient-with-multiple-myeloma
#19
Amanda Bradley, Amy Estes, Lane Ulrich, Dilip Thomas, David Gay
PURPOSE: We report a 75-year-old woman with a history of multiple myeloma immunoglobulin D (IgD) variant, who presented with an epibulbar plasmacytoma masquerading as a subconjunctival hemorrhage. METHODS: Magnetic resonance imaging of the brain and orbits with and without contrast was obtained and surgical biopsy of the subconjunctival lesion was performed; histopathology confirmed the diagnosis of plasmacytoma. RESULTS: Subconjunctival biopsy revealed a plasma cell neoplasm infiltrate in the episcleral layer...
February 2017: Cornea
https://www.readbyqxmd.com/read/28056549/pegylated-long-circulating-liposomes-deliver-homoharringtonine-to-suppress-multiple-myeloma-cancer-stem-cells
#20
Miao Li, Fangfang Shi, Xiong Fei, Songyan Wu, Di Wu, Meng Pan, Shouhua Luo, Ning Gu, Jun Dou
The goal of this investigation was to evaluate the inhibiting effect of high proportion polyethyleneglycol of long-circulating homoharringtonine liposomes on RPMI8226 multiple myeloma cancer stem cells. The CD138(-)CD34(-) multiple myeloma cancer stem cells isolated from RPMI8226 cell line using magnetic activated cell sorting system were, respectively, incubated with the optimized formulation of polyethyleneglycol of long-circulating homoharringtonine liposomes and the homoharringtonine in vitro, and the multiple myeloma cancer stem cell proliferation, colony formation, and cell cycle were analyzed...
May 2017: Experimental Biology and Medicine
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